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Introduction

If your PC is overheating, you may simply have to dust and get rid of lint off the devices fan and heatsink or replacing the fan and heatsink on your HP EliteBook 840 G1

What you need

Step 1 Battery

HP Elitebook 840 G1 Heatsink and Fan Replacement, Battery: step 1, image 1 of 1

Working on your device while it is turned on may result in electric shock. Make sure to shut down and unplug your device before you begin.
Slide the latch, to the right, away from the lock symbol.
Slide the cover away from the latch to remove it.

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Step 2

Once the cover is removed you will be able to see the battery and the two latches that hold it in place.
The two latches should be pulled back, one of which is spring loaded and must be held in place in order to remove the battery.

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Step 3

Battery should easily be lifted up and out.

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Step 4 RAM

HP Elitebook 840 G1 Heatsink and Fan Replacement, RAM: step 4, image 1 of 1

Tool used on this step:

Anti-Static Wrist Strap

$7.95

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Identify the RAM and the pull tabs that will be used in the next step.
Always use an anti-static wrist strap when working on a computer.

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Step 5

Pull back the two tabs on either side of the RAM this will allow the RAM to be removed.
When handling a memory module, use care to prevent touching the memory chips on the board. Touching the memory chips could damage or destroy the memory.

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Step 6

Pull the RAM stick gently out and up once the tabs have been pulled to the side.

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Step 7 Hard Drive

HP Elitebook 840 G1 Heatsink and Fan Replacement, Hard Drive: step 7, image 1 of 2

HP Elitebook 840 G1 Heatsink and Fan Replacement, Hard Drive: step 7, image 2 of 2

Loosen the four Phillips screws securing the hard drive.
These screws will stay captive to the plastic hard drive bracket.

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Step 8

Grab the pull tab on the hard drives plastic casing and pull it out and to the side.
Make sure all screws have been properly loosened and are no longer connected at the bottom before doing this step.
Remove the 2.5" hard drive from the plastic bracket.

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Step 9 Heatsink and Fan

HP Elitebook 840 G1 Heatsink and Fan Replacement, Heatsink and Fan: step 9, image 1 of 1

In order to take out the fan and heatsink the plastic cover must first be taken off.
Remove the eight 2 mm Phillips #1 screws.

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Step 10

Remove SD card by sliding it out.

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Step 11

HP Elitebook 840 G1 Heatsink and Fan Replacement: step 11, image 3 of 3

Remove the thirteen 6 mm Torx T8 screws.
Some screws have plastic covers over them that need to be pried out before the screws can be removed.
Remove the five Torx M2.5x5 screws.
Remove the single 7 mm Phillips #1 screw.
Loosen the two Phillips #1 screws. These screws will remain captive to the device.

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Step 12

Using the plastic opening tools, remove the plastic cover by beginning at one of the corners and prying it up.

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Step 13

Use the plastic opening tools to remove the keyboard, starting at one of the top corners. You need to lift the top side and then takeing it out moving the keyboard towards the screen.
Once the keyboard is removed, detach the ribbons connecting the keyboard to the laptop by prying the small tab and sliding the ribbon out.

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Step 14

Loosen the six Phillips #1 screws. These will remain captive to the heatsink.

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Step 15

Use the plastic opening tools to remove the tape covering the wires connected from the fan to the motherboard.
Disconnect the fan by sliding the wire out.

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